Scientists believe there’s no scenario in which the world can meet its target of preventing the earth from warming 1.5 degrees Celsius. The result will have dangerous implications on billions of people worldwide as catastrophic climate change has arrived. A bombshell report from the United Nations paints a dark picture of how the planet has changed in the past eight years. However, there is still some time to head off some irreversible changes. Here’s why scientists say we should be scared.